Question

Find the result making sure to use the appropriate number of significant figures: a. b. c. 5.0 X 43.9 0.0040/0.04 X 22 15.0+0.01

Answer 1

a. 219.5

b. 2.2

c. 15.01

Step-by-step explanation:

a.
`5.0 * 43.9 = 219.5`

The number of significant figures in 219.5 is four.

b.
`(0.0040)/(0.04)* 22 = 2.2`

The number of significant figures in 2.2 is two.

c.
`15.0 + 0.01 = 15.01`

The number of significant figure in 15.01 is four.

Significant figures in chemistry are defined as the total number of digits which is contributing to the measurement resolution.